<table>
<tr>
  <td>Grass Pack Texture </td><td><select id="GrassMaterialTab_Texture" onchange="updateGrassMaterial()"></select></td>
</tr>
<tr>
  <td>Strength </td><td><input type="text" onkeypress="return isNumberKey(event);" id="GrassMaterialTab_Strength" onchange="updateGrassMaterial();"/></td>
</tr>
<tr>
  <td>SwingFactor </td><td><div id="GrassMaterialTab_SwingFactor"></div></td>
</tr>
<tr>
  <td>AlphaRef </td><td><div id="GrassMaterialTab_AlphaRef"></div></td>
</tr> 
</table>